(0 9 4)(1 12 2)(3 17 6)(5 19 7)(8 13 10)(11 16 14)(15 20 18)
ALLOWS (11/8)-SEQUENCE
1: (3 6 17)

(0 9 4)(1 12 2)(3 6 17)(5 19 7)(8 13 10)(11 16 14)(15 20 18)
2: (5 19 7)

(0 9 4)(1 12 2)(3 6 17)(5)(7)(8 13 10)(11 16 14)(15 20 18)(19)
3: (3 6 17)

(0 9 4)(1 12 2)(3)(5)(6)(7)(8 13 10)(11 16 14)(15 20 18)(17)(19)
4: (15 20 18)

(0 9 4)(1 12 2)(3)(5)(6)(7)(8 13 10)(11 16 14)(15)(17)(18)(19)(20)